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Landslopc > 1 `�t slope �;. MOUND SLOPL AVID f tl & LENG I 1l (landslope greater than 1%) -r,.. 1. Downslope absorption width = absorption width fl= " l / Oo �n�G OO. h.,�cr lr5 tl� minus rock layer width (I)2) - o�U ft - /O ft = /O ft -•-•- Ne�tru tui);I.iyrr ll(r�l.rpr Width(G2d) Rcri k W,d th(D2) Lhr.+irahrtr W,dth(C2r) fl11 Calculate mound size UPSLOPE a. Depth of clean sand fill at upslope edge of Ahv,ryhon W.d t h_S,r,d(r) rock layer = 3 ft minus the distance to restricting laver (C1) 3 ft - S ft = 1-5 ft i�. Mound height at the upslope edge of rock D-s4: SLOPE MULTIPLIER TABLE !dyer = depth of clean sand for separation (G2a) Land UPSLOPE DOWNSLOPE sloppe multipliers for various multipliers for various at upslope edge plus depth of rock layer (1 ft) mor slope ratios slope ratios )IUs depth of cover (1 ft) 3:1 4:1 5:1 6:1 7:1 8:1 3:1 4:1 5:1 6:1 7:1 .5 ft + Ift + 1ft - ft 0 3.0 4.0 5.0 6.0 7.0 8.0 3.0 4.0 5.0 6.0 7.0 - r ] 2.91 3.85 4.76 5.66 6.54 7.41 3.09 4.17 5.26 6.38 7.53 Upslope berm multiplier based on land slope 3.33 (see figure D-34) 2 2.83 3.70 4.54 5.36 6.14 6.90 3.19 4.35 5.56 6.82 8.14 3 A. Upslope width = berm multiplier (G2c) times 2.75 3.57 4.35 5.08 5.79 6.45 3.30 4.54 5.88 7.32 8.86 4 2.68 3.45 4.77 4.89 5.46 6.06 3.41 4.76 6.25 7.89 9.72 J slope mound height (G2b): 5 2.61 3.3 4.00 4.62 5.19 5.71 3.53 S W� 6.67 8.57 10.77 3,5 X 3.3.3 ft = /J_ ft 6 2.54 3.23 3.85 4.41 4.93 5.41 3.66 5.26 7.14 9.38 12.07 DOWNSLOPE 7 2.48 3.12 3.70 4.23 4.70 5.13 3.80 5.56 7.69 10.34 13.73 Drop in elevation = rock layer width (D2) times 8 2.42 3.03 3.57 4.05 4.49 4.88 3.95 5.88 8.33 11,54 15.91 (.percent landsloope (C5) - 100 9 2.36 2.94 3.45 3.90 4.30 4.65 4.11 6.25 9.09 13.D4 18.92 /d ft X J % - 100 _ S/ ft 10 2.31 2.86 3.33 3.75 4.12 4.44 4.29 6.67 10.00 15.00 23.33 Downslope mound height = depth of clean 11 2.26 2.78 3.23 3.61 3.95 4.26 4.48 7.19 17.11 17.65 30.4: ;and for slope difference (G2e) at downslope 12 2.21 2.70 3.12 3.49 3.80 4.08 4.69 7.69 12.50 21.43 43.75 rock edge plus the mound height at the upslope edge of rock layer (G2b) S ft + S ft = y ft . Downslope berm multiplier based on percent land slop (see figure D-34) 'i. Downslope width = downslope multiplier Upslope Width(G2d) ,G2g) times downslope mound height (G20 Rock Bed Upslope Width(G2d) _�_ )( vo ft = a of _ft m Upslope Width(G2d) %Vidth(D2) ft Select the greater of G1 and G2h as the ft Length(03) lownslope width: 90ft Downslope Wid th(G2i) ft Total mound width is the sum of upslope absorption Width(F)� .vidth (G2d) width plus rock layer width D2) plus downslope width (G2i) Total Length(G2k)____ -h i�4 ft + f0 ft + acft = `� ft Total mound length is the sum of upslope width (G2d) Aus rock layer length (D3) plus upslope width (G2d) �a ft + _ ft + eft = :_ feet Final Dimensions: yat x I hereby certify that 1 have completed this work in accordance with applicable ordinances, rules and laws. y ---,--(signature)